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/*
* Copyright (C) 2018 "IoT.bzh"
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define _GNU_SOURCE
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include "ctl-plugin.h"
#include "supervisor-api.h"
#include "supervisor.h"
#include "wrap-json.h"
struct afb_cred {
int refcount;
uid_t uid;
gid_t gid;
pid_t pid;
const char* user;
const char* label;
const char* id;
};
static const char* null_str = "null";
struct decode_daemon_str {
DAEMONS_T* daemons;
afb_api_t api;
const char* ignored_daemon;
int* ret_code;
};
static void decode_daemons_cb(void* closure, json_object* obj, const char* fName)
{
int rc;
struct afb_cred cred;
json_object *j_response, *j_query, *j_config, *j_ws_servers, *j_ws_clients;
json_object *j_name, *j_apis;
struct decode_daemon_str* clStr = (struct decode_daemon_str*)closure;
DAEMON_T* daemon = calloc(sizeof(DAEMON_T), 1);
if (!clStr->daemons)
return;
if ((rc = wrap_json_unpack(obj, "{si si si ss ss ss}", "pid", &cred.pid,
"uid", &cred.uid, "gid", &cred.gid, "id", &cred.id,
"label", &cred.label, "user", &cred.user))
< 0) {
// TODO
return;
}
AFB_API_INFO(clStr->api, "Get supervisor/config - pid %d", cred.pid);
daemon->pid = cred.pid;
// Get config
wrap_json_pack(&j_query, "{s:i}", "pid", cred.pid);
rc = afb_api_call_sync_legacy(clStr->api, SRV_SUPERVISOR_NAME, "config", j_query, &j_response);
if (rc < 0) {
AFB_API_ERROR(clStr->api, "Cannot get config of pid %d", cred.pid);
*clStr->ret_code = rc;
return;
}
AFB_API_DEBUG(clStr->api, "%s config result, res=%s", SRV_SUPERVISOR_NAME,
json_object_to_json_string(j_response));
if (json_object_object_get_ex(j_response, "response", &j_config)) {
// FIXME : implement free
daemon->config = j_config;
rc = wrap_json_unpack(j_config, "{s:o s:o s:o}",
"name", &j_name,
"ws_servers", &j_ws_servers,
"ws_clients", &j_ws_clients);
if (rc < 0) {
AFB_API_ERROR(clStr->api, "Error decoding config response %s", wrap_json_get_error_string(rc));
return;
}
daemon->name = json_object_is_type(j_name, json_type_null) ? null_str : json_object_get_string(j_name);
// ignored some daemon
if (clStr->ignored_daemon != NULL && strstr(daemon->name, clStr->ignored_daemon) != NULL) {
free(daemon);
return;
}
daemon->ws_servers = j_ws_servers;
daemon->isServer = (json_object_array_length(j_ws_servers) > 0);
daemon->ws_clients = j_ws_clients;
daemon->isClient = (json_object_array_length(j_ws_clients) > 0);
}
// Get apis
AFB_API_INFO(clStr->api, "Get supervisor/do monitor get apis - pid %d", cred.pid);
// '{"pid":6262,"api":"monitor","verb":"get","args":{"apis":true}}
wrap_json_pack(&j_query, "{si ss ss s {sb}}",
"pid", cred.pid,
"api", "monitor",
"verb", "get",
"args", "apis", true);
rc = afb_api_call_sync_legacy(clStr->api, SRV_SUPERVISOR_NAME, "do", j_query, &j_response);
if (rc < 0) {
AFB_API_ERROR(clStr->api, "Cannot get apis of pid %d", cred.pid);
return;
} else {
AFB_API_DEBUG(clStr->api, "%s do ...get apis result, res=%s", SRV_SUPERVISOR_NAME, json_object_to_json_string(j_response));
if (json_object_object_get_ex(j_response, "response", &j_config) && json_object_object_get_ex(j_config, "apis", &j_apis)) {
// Don't forward monitor config details
json_object_object_del(j_apis, "monitor");
// Only forward apis verb without all details
/* TODO
j_newApis = json_object_new_object();
json_object_object_foreach(json_object_object_get(j_apis, "apis"), key, val) {
...
}
*/
daemon->apis = j_apis;
}
}
clStr->daemons->daemons[clStr->daemons->count] = daemon;
clStr->daemons->count++;
}
int getDaemons(afb_api_t apiHandle, DAEMONS_T** daemons)
{
int rc;
json_object *j_response, *j_daemons = NULL;
*daemons = calloc(sizeof(DAEMONS_T), 1);
AFB_API_INFO(apiHandle, "Call supervisor/discover");
if ((rc = afb_api_call_sync_legacy(apiHandle, SRV_SUPERVISOR_NAME, "discover", NULL,
&j_response))
< 0) {
return rc;
}
AFB_API_INFO(apiHandle, "Call supervisor/list");
if ((rc = afb_api_call_sync_legacy(apiHandle, SRV_SUPERVISOR_NAME, "list", NULL,
&j_response))
< 0) {
return rc;
}
AFB_API_INFO(apiHandle, "Get details info for each daemon");
AFB_API_DEBUG(apiHandle, "%s list result, res=%s", SRV_SUPERVISOR_NAME, json_object_to_json_string(j_response));
if (!json_object_object_get_ex(j_response, "response", &j_daemons)) {
}
struct decode_daemon_str cls = {
*daemons,
apiHandle,
apiHandle->apiname,
&rc
};
wrap_json_object_for_all(j_daemons, decode_daemons_cb, &cls);
return rc;
}
#define XDS_TAG_REQUEST "xds:trace/request"
#define XDS_TAG_EVENT "xds:trace/event"
#define XDS_TRACE_NAME "xds-trace"
int trace_daemon(afb_api_t apiHandle, DAEMON_T* dm, const char* level)
{
int rc;
json_object *j_response, *j_query, *j_tracereq, *j_traceevt;
if (dm == NULL) {
return -1;
}
// First drop previous traces
// Note: ignored error (expected 1st time/when no trace exist)
trace_drop(apiHandle, dm->pid);
j_tracereq = json_object_new_array();
if (level && !strncmp(level, "all", 3)) {
json_object_array_add(j_tracereq, json_object_new_string("all"));
} else {
json_object_array_add(j_tracereq, json_object_new_string("life"));
json_object_array_add(j_tracereq, json_object_new_string("reply"));
}
j_traceevt = json_object_new_array();
if (level && !strncmp(level, "all", 3)) {
json_object_array_add(j_traceevt, json_object_new_string("all"));
} else {
json_object_array_add(j_traceevt, json_object_new_string("common"));
}
// Configure tracing of specified daemon
// request: monitor/trace({ "add": { "tag": "xds:trace/request", "name": "trace", "request": "all" } })
wrap_json_pack(&j_query, "{s:i, s: [{s:s s:s s:o}, {s:s s:s s:o}] }",
"pid", dm->pid, "add",
"tag", XDS_TAG_REQUEST, "name", XDS_TRACE_NAME, "request", j_tracereq,
"tag", XDS_TAG_EVENT, "name", XDS_TRACE_NAME, "event", j_traceevt);
if ((rc = afb_api_call_sync_legacy(apiHandle, SRV_SUPERVISOR_NAME, "trace", j_query, &j_response)) < 0) {
AFB_API_ERROR(apiHandle, "ERROR tracing pid %d result: %s", dm->pid,
json_object_to_json_string(j_response));
return rc;
}
return 0;
}
// FIXME prototype must be int trace_drop(afb_api_t apiHandle, DAEMON_T* dm)
int trace_drop(afb_api_t apiHandle, int pid)
{
json_object *j_response, *j_query;
// monitor/trace({ "drop": { "tag": "trace/request" } })
wrap_json_pack(&j_query, "{s:i s:{s:[s s]}}", "pid", pid, "drop", "tag", XDS_TAG_REQUEST, XDS_TAG_EVENT);
return afb_api_call_sync_legacy(apiHandle, SRV_SUPERVISOR_NAME, "trace", j_query, &j_response);
}
int supervisor_init(void)
{
return 0;
}
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